Void Warranty question (urgent)
Last edited by vitamink; Dec 31, 2015 at 01:45 PM.




Get a tune = warranty may be voided. Pay to play.
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Opening an ECU, may lead to ingress of moisture later, for example.
Mine was opened too, so I am carrying the same risk.
How much do they want to charge you?
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Opening an ECU, may lead to ingress of moisture later, for example.
Mine was opened too, so I am carrying the same risk.
How much do they want to charge you?
OP, I'd wait till Kleeman opens back up after the holidays and speak with them first before admitting anything to the dealer. Hope you sort this out.
Does the car still drive?
My understanding from reading numerous threads on this and other MB centric sites is that if MB finds evidence of a tune (they considering it "tampering"), in this case they apparently found evidence after examining OP's ECU, that MB can void the vehicle's warranty for that repair. As others have said here "Get a tune = warranty may be voided. Pay to play.", which is what I would expect given MB's position on tuning.




Does the car still drive?




There is a good chance it may be solvable by adjusting the tune. Yes, Kleemann should be able to help with that.
exactly this. even with cats kleemann was turning off monitors. they have a fix just requires you to send them the ECU.
If so, can u even return the new one?
Okay, so as mentioned and just to confirm, that K1 tune involves actually going into the ECU (so the tech can visually tell the ECU has been tampered with) and those K1 tunes from Kleemann turned off your o2 monitors so you wouldn't pass regardless.
There is NO need for a new ECU. Just send your current ecu off to kleemann and have them retune it but make sure you tell them you want the monitors to remain untouched.
At this point, kiss that warranty goodbye. At least at that dealership.
Next order of business, for those of you in the OBDII tuning game, the dealer can tell your car is tuned. The fact of the matter is once the car is tuned, if something catastrophic happens to your car and you're trying to get warranty work done they are going to dig and find the tune whether you like it or not. Sure, tuners will say they cant be seen or detected blah blah. They can.
Furthermore, IF YOU BOUGHT A USED C63, you also may want to be prepared to have your warranty voided even if you haven't touched the car. Previous owners likely have.
OP -- Make every effort to make sure the dealer does not put in the new ECU. It's pointless. I mean, you can have them do it but your warranty will still be voided and you'll be back on a stock tune.



